520161121316 has 6 divisors (see below), whose sum is σ = 910281962310. Its totient is φ = 260080560656.

The previous prime is 520161121303. The next prime is 520161121343. The reversal of 520161121316 is 613121161025.

It can be written as a sum of positive squares in only one way, i.e., 369547273216 + 150613848100 = 607904^2 + 388090^2 .

It is a super-3 number, since 3×520161121316³ (a number of 36 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65020140161 + ... + 65020140168.

It is an arithmetic number, because the mean of its divisors is an integer number (151713660385).

Almost surely, 2^520161121316 is an apocalyptic number.

It is an amenable number.

520161121316 is a deficient number, since it is larger than the sum of its proper divisors (390120840994).

520161121316 is a wasteful number, since it uses less digits than its factorization.

520161121316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130040280333 (or 130040280331 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 520161121316 in words is "five hundred twenty billion, one hundred sixty-one million, one hundred twenty-one thousand, three hundred sixteen".